Door-holder.



No.880,630. PATENTED MAR. s, 1908. R.GLARK.

DOOR HOLDER.

APPLICATION FILED we. 29, 1907.

wammw ROBERT CLARK, OF CHARLIE, TEXAS.

DOOR-HOLDER.

Specification of Letters Patent.

Patented March 3, 1908.

Application filed August 29. 1907. Serial No. 390.653.

To all whom it may concern:

Be it known that I, ROBERT CLARK, a

citizen of the United States, residing at Charlie, in the county of Clay and State of Texas, have invented certain new and useful Improvements in Door-Holders, of which the following is a specification.

This invention relates to door holders.

One object of the invention is to provide a door holder embodying such characteristics that upon operation of the door knob the door may be held open in difierent positions according to the desires of the manipulator of the door.

Another object resides in the provision of a simple, inexpensive, durable and efficient door holder of the nature stated embodying in its organization of elements the further characteristic of holding the door open in adjusted position Without the operation of means other than the door knob.

With the above and other objects in View, the present invention consists in the combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawings and particularly pointed out in the appended claims, it being understood that changes may be made in the form, proportion, size and minor details Without departing from the spirit or sacrificing any of the advantages thereof.

In the drawings :Figure 1 is an elevation of a door and door frame illustrating the application of my invention when the door is closed. Fig. 2 is a transverse sectional view through a door and its frame illustrating my invention in plan, the door being in closed position. Fig. 3 is a view similar to Fig. 2, illustrating the door in open position. Fig. 4 is an enlarged detail horizontal sectional view of the holder locking means.

Referring now more particularly to the accompanying drawings, the reference character 1 indicates a door and 2 the frame of the latter, the character 3 indicating the usual form of door knob. These parts may be of the ordinary construction.

Secured to the outside of the frame of the door on a line with the door knob 3 is a bracket 4 having spaced ears 5, between which latter is pivoted an arm 6, by means of a pivot 7. The outer end of this arm 6 is slightly curved and bifurcated to provide the spaced ears 8 to receive the slightly curved, reduced inner end of the latch arm 9, whose surface adjacent the door is provided with a series of spaced notches 10.

The latch bar 9 of the holder has sliding movement through the bore 11 of the latch holder casing 12, which bore has communication with a groove 13 of the casing 12 by Way of an opening 14 through which latter works a dog 15 movable through said opening 14 upon movement of the spindle 16 upon which the dog 15 is mounted.

It will be seen that the spindle 16 has a head portion 17 terminating in a curved end 18, the head being reduced, forming a notch 19, in which latter the dog 15 is mounted and prevented from leaving the spindle upon reciprocation of the latter to withdraw the dog 15 from engagement with the notches 10 of the bar 9, there being a helical or other sprin 2O encircling the spindle 16 between its hea 17 and the corresponding end of the casing 12, as clearly shown in Fig. 4, there being a flat s ring 21 secured to the casing 12 and to the d dg 15, to hold the latter normally at a direct right angle to the spindle to insure a positive engagement of the knife edge of the dog 15 in the notches 10. The end of the spindle 16 opposite the head 17 is reduced and screw threaded, as indicated at 22, for engagement in the screw threaded socket in the end of the reciprocating bar 24, which latter has its outer end reduced and a loop 25 fixedly secured at the reduced end to provide guides 26 and 27 above and below the rod 24, respectively, for the purpose of guiding the respective links 28 and 29 pivotally secured to the ends of the roll back 30, Which latter is secured to the knob spindle between the knob and the door, as clearly shown in Figs. 2 and 3.

When the door is closed and it is desired to open the same a predetermined distance, it is simply necessary to turn the knob of the door to 0 en the latter. The roll back 30, being fiXe with the knob spindle, will move in the direction the knob is turned, and regardless of which direction the knob is turned, the corresponding link 28 or 29, each of which has a hooked end 31 working against the inner face of the loo 25, will cause the bar 24 to be pulled towar cl the knob, and this bar 24 being secured to the spindle 16 will cause the latter to be pulled outwardly of its casing 12 against the action of the helical spring 20 to disengage the dog 15 from the notches 10 of the bar 9. When the door has reached the redetermined o en position the knob is released and the oor moved only so far, if necessary to move it at all, to permit the dog to engage in the corresponding notch 10 and lock the door against movement by wind or otherwise from its open position. It will be understood that when the door is open with the dog disengaged from the notches 10 of the bar 9, that the latter will have sliding movement in the casing 12. It might be stated that when the roll back 30 is turned to the left the link 28 will reciprocate the bar 24, while the link29 will remain idle, as far as the reci rocation of the bar 24 is concerned, whi e when the roll back 30 is turned toward the right the link 29 will reciprocate the bar 24, while the link 28 will remain idle. If desired the spindle 16 may be operated to a certain extent, if not completely, by engaging the handle bar 18 of the spindle to disengage the dog 15 from the notches 10 of the bar 9, so that when the door is in open position it may be adjusted to different positions.

What is claimed is 1. A bracket adapted to be attached to a door frame, a casing adapted to be attached to a door, the casing having two communicating assage ways therein, a bar pivoted at one end to said bracket, abar pivoted to the first mentioned bar and having slidable movement in one of the passage ways of said casing, the second mentioned bar having notches throughout its length, a spring actuated spindle mounted in the other of said passage ways of said casing, a spring actuated dog mounted in the casing and working through the communication between the passage ways into and out of the notches of said second mentioned bar by the reciprocation of said spindle, and a bar having connection with said spindle and with the knob for reciprocation upon turning of the knob to actuate said spindle.

2. A bar adapted to be swingingly attached at one end to a door frame, a bar pivotally connected at one end to the free end of said swinging bar, a supporting element adapted to be attached to a door a catch device operating in said supporting element and adapted to be yieldablyconnected at spaced intervals to said pivoted bar, and means adapted to be actuated by a knob spindle whereby said catch device is operated.

3. In a device of the class described, a casing having means for attachment to a door and provided with longitudinal passage ways, a spindle spring supported and movable through one of said passage ways, a bar movable through the other of said passage ways and provided with spaced notches, a

dog spring supported within said casing and adapted to yieldably engage the notches in said bar and through which said spindle is operatively engaged, a bar swinging at one end from the free end of said notched bar and with means at its other end for being swingingly connected to a door frame, and means connecting said spindle with the knob spindle of thedoor, whereby the rotation of the knob spindle will operate the spindle of said casing to cause it to operate said dog.

4. In a device of the class described, a bar adapted to be swingingly attached to a door frame, a bar pivotally connected to the'free end of said swinging bar and rovided with spaced notches, a supporting e ement adapted to be connected to a door, a catch device comprising a dog, spring controlled, and carried by said supporting element and yieldably engaging said notches, and connecting means between said dog and a knob spindle, whereby the oscillation of said knob spindle will release said dog.

5. In a device of the class described, a bar adapted to be swingingly attached to a door frame, a bar pivotally connected to the free end of said swinging bar and provided with a plurality of spaced notches, a casing adapted to be attached to a door and through which said pivoted bar slidably extends, a catch device within said oasing and detachably engaging the notches of said pivoted bar, and means whereby the oscillation of a knob spindle will actuate said catch device and release said pivoted bar.

6. The combination with a door including a knob spindle and a door frame, of a bar swingingly connected to said frame, a casing having spaced longitudinal guide ways and connected to said door, a bar pivoted at one end to the free end of said swinging bar and slidably disposed through one of the guide ways of said casing and provided with spaced transverse notches, a dog spring supported and provided with a transverse aperture within saidcasing and adapted to yieldably engage said notches, a roll-back adapted to be connected to the spindle of said knob, a spring operated spindle movably engaging the other guide way of said casing and extending through the aperture of said dog and with a curved depression at the point where it passes through the dog, a connecting rod attached to said spindle at one end and with a loop device at the other end provided with spaced apertures, and members pivotally connected the apertures of said 100 and enlarged in ad- In testimony whereof I affix my signature, Vance of the loop to 'mit the movement in presence of tWo Witnesses.

therethrough in one direction, whereby the oscillation of the knob spindle will release the ROBERT CLARK 5 dog from engagement With the notches and Witnesses:

hold the same released and permit the swing- J. M. PERRY,

ing of the door. CHAS. OoNNoLLY. 

